Last year, Erakovic reached the third round at the US Open, while the Kiwi No 1 and Parra Santonja reached the quarterfinals at the French Open this year.

In a match of abundant break points, which last 1 hour 54 minutes, neither pair was able to take advantage - with Erakovic and Parra Santonja converting 2-of-5 break chances, while Muguruza and Suarez Navarro grabbed only 5-of-12.